Pith Number

pith:QH23QXBM

pith:2001:QH23QXBMJE4DJXWZLQLXZURA7S

not attested not anchored not stored refs pending

Revisiting the Cosmic Cooling Crisis

Frazer Pearce, Michael Balogh, Richard Bower (U. Durham) Scott Kay (U. Sussex)

arxiv:astro-ph/0104041 v1 · 2001-04-03 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QH23QXBMJE4DJXWZLQLXZURA7S}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T01:22:59.058036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81f5b85c2c493834ded95c177cd220fcb27183d38661a1a918545e1afb913363

Aliases

arxiv: astro-ph/0104041 · arxiv_version: astro-ph/0104041v1 · doi: 10.48550/arxiv.astro-ph/0104041 · pith_short_12: QH23QXBMJE4D · pith_short_16: QH23QXBMJE4DJXWZ · pith_short_8: QH23QXBM

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QH23QXBMJE4DJXWZLQLXZURA7S \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 81f5b85c2c493834ded95c177cd220fcb27183d38661a1a918545e1afb913363

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "936f79ffcc694e5779e5d3f01f9ad4a468bdb20dc2c2def6c4cdb2c797454cba",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-03T09:26:24Z",
    "title_canon_sha256": "4861b3c8becdc6df6f5c651041168895c57a27168004f50cf8edb5acc7fc09cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104041",
    "kind": "arxiv",
    "version": 1
  }
}